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The ischemic (ischaemic) cascade is a series of biochemical reactions that are initiated in the brain and other aerobic tissues after seconds to minutes of ischemia (inadequate blood supply). [1] This is typically secondary to stroke, injury, or cardiac arrest due to heart attack.
Brain ischemia has been linked to a variety of diseases or abnormalities. Individuals with sickle cell anemia, compressed blood vessels, ventricular tachycardia, plaque buildup in the arteries, blood clots, extremely low blood pressure as a result of heart attack, and congenital heart defects have a higher predisposition to brain ischemia in comparison to the average population.
Primary and secondary brain injury are ways to classify the injury processes that occur in brain injury. In traumatic brain injury (TBI), primary brain injury occurs during the initial insult, and results from displacement of the physical structures of the brain. [1] Secondary brain injury occurs gradually and may involve an array of cellular ...
The heart supplies blood carrying oxygen and nutrients to the brain, and the brain provides autonomic system control to the heart. In other words, the brain helps regulate heart rate, breathing ...
Primary brain injury (the damage that occurs at the moment of trauma when tissues and blood vessels are stretched, compressed, and torn) is not adequate to explain this deterioration; rather, it is caused by secondary injury, a complex set of cellular processes and biochemical cascades that occur in the minutes to days following the trauma. [73]
Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen), specifically involving the brain; when the brain is completely deprived of oxygen, it is called cerebral anoxia. There are four categories of cerebral hypoxia; they are, in order of increasing severity: diffuse cerebral hypoxia (DCH), focal cerebral ischemia , cerebral infarction ...
Brain injury; Other names: Brain damage, neurotrauma: A CT of the head years after a traumatic brain injury showing an empty space where the damage occurred, marked by the arrow: Specialty: Neurology: Symptoms: Depending on brain area injured: Types: Acquired brain injury (ABI), traumatic brain injury (TBI), focal or diffuse, primary and secondary
Per a pamphlet of the Universal Negro Improvement Association (U.N.I.A), Garvey wrote that "Red is the color of the blood which men must shed for their redemption and liberty; black is the color ...